Necticut



E. H. COOPER.

BALL BEARING.

APPLICATION FILED OCT-19.1920.

1,374,988. Patented Apr. 19, 1921.

vwawtoz UNITED STATES PATENT OFFICE.

ELISHA H. COOPER, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE FAFNIRBEARING COMPAINY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CON-NECTICUT.

BALL-BEARING.

Application filed October 19. 120.

To all 'wizomc't may concern:

Be it known that I, ELISHA H. Coornn, a citizen ot the United States ofAmerica, residing; at New Britain, Hartford county,

Connecticut, have invented a new and useful ill-Bearing, or which theiollowing is ecitication.

invention relates to ball bearings, and

. ticular reference to a so called unitarv ball bearing of the singlerow type in winch the bearing is so constructed as to effectively resistboth radial and thrust loads.

in the accompanying drawing:

1 is a cross section oi a bearing iucted to embody my invention, saidsection being taken on the plane of the line l-l of Fig. 2.

Fig. 2 is a side elevation of the complete bearing.

his. I?) is a sectional view illustrating a 'fication.

at is a similar VlQW' illustrating another modification.

l re n'esents the inner ring of a ball hearing. This has acircumferential ball race groove therein. The outer ring is made up cttwo ring-like pieces or sections 2-3 which are connected welding. t areballs arranged in a single row or series. The two ring-sections 2-3reston opposite sides 02 the row of balls and hear angularl thereon. Theball contact surface of each section is suitably shaped and hardened toterm bearin track upon which the balls ma run. The sections 2-3 areconnetted by welding in the same plane as the row of balls, but thispart of the bearing ring does not contact with the balls sincemanifestly a proper bearing track or surface could not be termed bywelding at the line .mection. The bearing thus constructed d be seenfurnish a three-point bearon each ball. This furnishes a very irerfulresistance to thrust loads.

. he sections L -3 of the outer bearing); ring Y be welded together inany desired manand the balls not only act as spacers 10' the weldingoperation, but when the to welding: is completed, they then operate tohold the bearing rings in the proper assembled and adjusted relation.

In Fig. 3, I have shown a slight modification in which I. have provideddestructive shims 55 between the balls and the adjacent ring sections23. The presence of Specification of Letters Patent.

Patented Apr. 19, 1921.

Serial No. 417.981.

these shims prevents the two sections from being crowded too hardagainst the balls during the welding operation. These shims may be madeof any suitable material such as paper, and this paper may be properlyinsulated so as to prevent current flow through the balls during thewelding operation, in the event the electric welding process isemployed.

In i, I have shown the rings 2-?) as connected by welding, but in thisevent, instead of making a direct or homogeneous connection between thesections 2-3, l have provided ring section 6 which overlies or aridgesthe ring sections 2-3, and which may be suitably welded to each of thesame, for example, by the spot welding process, the spots beingindicated in dotted lines. In this case, the outer sleeve 6 constitutesthe outer surface or" the outer bearing ring.

In the drawings, 1 have shown the outer bearing ring as the one beingformed of two sections 2-3, but i do not wish to be limited thereto,since, it is perfectly obvious that either one 01" the bearing; ringscould be made in this way.

that I claim is:

1. In a single row three-point ball bearing of the unitary or assembledtype, two bearing rings, one 01" said rings being formed of tworing-like sections connected by welding, a ball race wa} groove in oneof the rings, two separately spaced ball tracks formed on the twosections of the other ring for engaging;- a row of balls on oppositesides, a single row of balls between s rings. that part of the twosection bearmg; ring between said ball tracks being: out of contact withsaid balls.

In a single row three-point ball bearing; t a uu type, two hearingrings, one formed of two annular sections each avian a ball trackthereon arranged to eno'ag'e a row oi balls on opposite sides, and asleeve fitted to said ring sections on the opposite side thereoi fromsaid ball tracks and secured thereto by welding to connect said ringsections, and a second bearing; ringtor supporting said row of balls onthe op posite side from the first mentioned ring, said balls operating;to hold both bearing rings in assembled and adjusted relation withrespect to each other and with respect to said ball.

ELISHA. H. COOPER.

